Speaker
Hyun-il Kim
(Y)
Description
Muon tomography can be utilized to detect high-density materials such as special nuclear material(SNM) and shielding board by traking the incoming and outgoing trajectories of muon. We designed a muon tomography system consisting of four detector modules. Each module is composed of a large-area plastic scintillator, wavelength shifting(WLS) fibers placed on the top and bottom of the scintillator and PSPMT. WLS fiber arrays are aligned in orthogonal directions to each other and represent the ligth distribution in the x and y directions, respectively. Light photons produced by muon particle inside the plastic scintillator are absorbed by the WLS fiber and the re-emitted green light is guided by total internal reflection to the PSPMT. In this study, we characterized the effect of design parameters such as the scintillator size and thickness, WLS fiber size, number and interval on the image quality through DETECT2000 simulation. The optimal parameters were derived and one detector module was developed. Experimental results agreed well with simulation. This result indicates that the detector module is feasible for muon tomography system.
| quote your primary experiment | Muon, WLS, DETECT2000, |
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Author
Hyun-il Kim
(Y)
Co-authors
WOO JIN JO
(YONSEI UNIVERSITY)
Mr
Yong Hyun Chung
(YONSEI UNIVERSITY)
